HOSE SECTION AND PUMP SYSTEM FOR PUMPING A LIQUID, AND THE PROCEDURE FOR DOING SO.

Abstract

The invention concerns a hose section and pumping system for pumping a liquid, and the method thereof. The hose section according to the invention comprises: - a tubular body in use extending between a first end and a second end; - a first coupling element provided at or near the first end of the hose section designed for connecting the hose section to another hose section, and a second coupling element provided at or near the second end of the hose section; - a sealing element fitted at or near at least one of the first and the second ends, where the sealing element is provided with a predominantly tubular part in use extending into an adjacent hose section and is provided with one or more reinforcing elements.

Description

The finding in question relates to a hose section, in particular a hose section. designed for assembling a hose with which a liquid, such as water, can be pumped. This pumping takes place, for example, during a flood where excess water needs to be pumped out. In practice, hose sections are known that are used for assembling a hose. With this, the length of the hose can be selected as needed by a number of hose sections to be connected. A coupling for this can be done in various ways. realized. For example, EP 2 837 869 B1 describes a hose coupling for the mutual connecting hose sections for the purpose of pumping excess water, such as for arrive in the event of a flood. In practice, hose sections and hoses are moved over various types of surfaces, depending, among other things, on the specific location where the excess water is located. Such a surface may, for example, consist of rocky ground or other (rough) terrain. In practice, such (rough) terrain results in wear on the hose section, and therefore also to the hose made up of a number of hose sections. This limits the lifespan of such a hose. Furthermore, hose sections appear, particularly at the connection to the adjacent hose sections, to experience leakage. Such a leak limits the effective pumping of the excess water. The purpose of the present invention is to provide a hose section that the above-mentioned eliminates or reduces problems. This objective is achieved with the hose section designed for assembly according to the invention. of a hose for pumping a liquid, where the hose part comprising: - a tubular body in use that extends between a first end and a second end; - a first coupling element provided at or near the first end of the hose section designed for connecting the hose section to another hose section, and on or near the second end of the hose section provided with a second coupling element; - placed on or near at least one of the first and the second end sealing element, where the sealing element is provided with a part that is predominantly tubular in use that extends into an adjacent hose section and is equipped with one or more reinforcement elements. By providing the hose section according to the invention with a, in use of the hose section, tubular body makes it possible to pump liquid, in particular excess water for example, a flood. In this case, the tubular body is preferably provided with a flexible material that is more specifically foldable or collapsible so that it is easy to is easy to store and transport. Furthermore, such a hose section is reasonably easy to move. and can also be removed again after use. The hose section according to the invention is provided with a first and a second end to which or where coupling elements are provided to connect the hose section to an adjacent one. hose section. The coupling elements at the respective ends of the hose section are hereby connected to cooperating coupling elements of the aforementioned adjacent hose sections. The cooperating coupling elements of adjacent hose sections form the following together form a link. Such a link can be realized in various ways, including by the use of hooks, eyes, straps, belts, ropes, knots and others suitable coupling elements. The hose section according to the invention is furthermore provided with a sealing element that is attached to or near at least one of the first and second ends of the hose section. The sealing element is also referred to as a sleeve and is equipped with a for use in essentially a tubular part which, after connection of the relevant hose section to a adjacent hose section, extends into this adjacent hose section. The sealing element is in this case furthermore provided with one or more reinforcement elements. The tubular part of the sealing The element can be designed as a box profile. It is also possible to the tubular part provided with a number of elements or strips that, in use, form into a kind of tubular part. However, in a currently preferred embodiment, the tubular part is provided as a tubular element made of a flexible and foldable material. By providing the sealing element, a seal is created between two adjacent (and coupled) hose sections realized often least improved. As a result, in use the Leakage of the pumped fluid significantly reduced. This is achieved, among other things, because this sealing element extends into an adjacent hose section over a sealing length or sealing distance. In such a currently preferred In this design, the sealing element is made of a material that is at least as flexible. if the tubular body of the hose section is flexible, and preferably even more so. With this, It has been shown that the sealing effect is further enhanced. By providing the hose section, and in particular the sealing element, with one or more reinforcement elements ensure that the sealing element is positioned in use in such a way extends as fully as possible into the adjacent hose section. This ensures that it remains in use under difficult conditions regarding type of terrain, temperature, type of fluids, the like, pumping the fluid effectively without unwanted loss of pumping capacity. This is in the particularly relevant in an emergency situation, such as during a flood, where so much in a short time possible excess water needs to be pumped out. A further advantage of using the reinforcement elements is that they prevent The sealing element is carried along with the water flow upon the loss or removal of the pump pressure. This is particularly relevant if the water needs to be pumped upwards, which is often the case in the event of a flood. Due to the loss of pump pressure, the change the direction and reverse the water flow. If the sealing element is thereby if taken along, this may start to restrict the flow passage. This may have adverse consequences for the pump capacity when restarting pumping. This is therefore avoided by applying the reinforcement elements according to the invention. Also prevent the reinforcement elements damage occurring to the sealing element. In an economical embodiment according to the invention, the one or more extend reinforcement elements are mainly located in the longitudinal direction of the hose section. By allowing the reinforcement elements to extend primarily in use in the longitudinal direction of the hose section becomes the sealing length, and thereby the sealing surface, made as large as possible. This ensures a further reduction of leakage. If desired, it is possible to place the reinforcement elements at an angle or in to shape a helix or screw. In these embodiments as well, it has reinforcement element the effect that the applied sealing element positions itself in a stable manner in extends in the longitudinal direction of the hose section into the preferably interior of the adjacent hose section, even in the event of loss of pump pressure. The reinforcement element is preferably on the inside of the sealing element. provided. As a result, the reinforcement element is shielded against possible occurrences on the one hand. wear and, on the other hand, contributes to better sealing of the sealing element against preferably an internal surface of an adjacent hose section. This causes the sealing function of the sealing element further improved. In a currently preferred embodiment, the reinforcement elements consist of a provide foldable material. Such foldable material could be, for example, a textile band, refers to a rubber element, reinforcement foil, or other suitable element. This provides a seal. element foldable as a whole, preferably together with the hose section to which it is attached. In an economical embodiment according to the invention, the tubular body of the hose section provided with a first material, and the sealing element is provided with a second, other, material. By providing the tubular body and the sealing element with different materials, the operation of the hose section as a whole can be further optimized. With The first material is preferred, that is to say the material of the tubular body provided. made of a wear-resistant material such that this tubular body can be placed on rough substrates and remains as intact as possible when moving over them. This first material concerns polyvinyl chloride (PVC) in a currently preferred form, with more preferably extruded PVC and / or one or more polyethylene materials. The sealing element is preferably provided with a more flexible material so that it is relatively easy to install in the interior of an adjacent hose section, and thereby can effectively connect against the internal surface of the tubular body of this adjacent hose section. With this the seal is further improved. This second material from which the sealing element in The main thing provided concerns, for example, ethylene propylene diene monomer (EPDM). With name the combination of the first and the second material, where the second material is more flexible is, has proven effective both in terms of limiting wear and improving the sealing in a service condition of the hose section. In particular, the combination of (Extruded) PVC and EPDM have proven effective. It will be clear that other similar combinations of materials are also among the possibilities. The tubular body and the sealing element are in a currently preferred embodiment according to the invention provided as separate elements which are mutually connected, preferably with a welded joint. Such a welded joint is also suitable in the event that the tubular body is made of a first material and the sealing element is provided from another second material, for example in a material combination as mentioned above. It has furthermore become apparent that, in addition to wear reduction and better sealing, the aforementioned combination also suitable for use with those occurring in practice during use of the hose section to deal with pressure differences. In one of the possible embodiments according to the invention, the first concerns coupling element and the second coupling element are parts that together form a hook-and-eye coupling. form, for example in a manner as described in the aforementioned EP 2 837 869 B1. In this process, an eye of a first hose section is inserted through an opening in the second hose section. and is subsequently attached to the The relevant end has been secured. It will be clear that other connections are also possible. However, it has proven that this hook-and-eye coupling is an effective coupling for the application. where excess water needs to be pumped out. In a further advantageous embodiment according to the invention, the hose part comprises one or more openings designed for draining the hose section when terminating the pumping. If pumping is terminated, for example because the pump of the pumping system to which the hose section to which the hose part is connected is stopped, the fluid must be removed from the hose section. to be, for example to enable the disposal of the hose section. By using a or for this purpose By providing more openings in the hose section, it is possible to drain the fluid effectively. exit from the interior of the hose section. The openings can be placed in various positions. installed, including at or near the ends of the hose section. Preferably, the openings in use are fitted with a closure to prevent the pumped fluid leaked away at unwanted moments. Such a blockage can for example be provided in the form of a check valve or other rebound element that function like a kind of check valve, where the fluid is only allowed through when the Busy. The present invention furthermore relates to a pumping system for pumping a liquid, where the pumping system comprising: - a pump; - a suction pipe fitted or attachable to the suction side of the pump; - a hose attached or attachable to the pump side of the pump, whereby the hose is composed of a number of hose sections according to versions of the invention. Such a pump system provides similar benefits and / or effects as described for the hose section. The hose sections according to the invention can be used on the pump side, optional over the entire length. This ensures the usability of the hose sections according to the invention further expanded. Although the, preferably foldable, hose sections also on the suction side of the pump can be applicable, it is preferred to work with hose sections that suitable to withstand negative pressure without being sucked flat. Preferably, the pumping system also includes a coupling tool designed for the establishing a connection between two adjacent hose sections. Such coupling tools can be designed in various ways, including in the form of a hook that is inserted through an opening at the end of the hose section and engages with a hook of a adjacent hose section so that this hook of the adjacent hose section when retracting the tool is pulled through the opening. Subsequently, such a hook can be secured, for example by threading a strap or other suitable element through it. The invention furthermore also relates to a method for pumping a liquid, where the method comprises the steps of: - the provision of a pump system with hose sections in accordance with a design of invention; - assembling the hose from a number of hose sections; - connecting the suction line and the hose; and - pumping the liquid. The method provides similar benefits and effects as described for the hose section. and / or the pump system. The hose sections according to the invention can be used on the pump side as well as on the suction side of the pump. This ensures the usability of the hose sections according to the invention further enlarged. After the pumping of a liquid, for example water during a flood, Once completed, the hose sections and the remaining elements of the pump system are cleared away. To this end, the hose is deflated and coiled in the currently preferred configuration or folded for further transport, storage, or use at another location. Further benefits, features, and details of the invention are explained by means of preferred forms of execution thereof, with reference to the attached drawing, in which: - Fig. 1 a view of a hose assembled from hose sections according to the invention; - Fig. 2 a view of a pump system with hose sections according to the invention; - Fig. 3A a view of the end of a hose section in a design according to the invention; - Fig. 3B a view of an alternative design of a hose section according to the invention; and - Fig. 4A,B a view of a possible coupling and associated tooling in a embodiment according to the invention. Hose 2 (Figure 1) is equipped with hose sections 2a,a,b,b,c,c which are interconnected with couplings 4. Hose section 2a,a,b,b,c,c extends over a length L in use and is in the shown embodiment provided with diameter D for (in use) tubular body 3. Hose section 2a,a is fitted with the first coupling element 8 at or near the first end 6 and is at or near second end 10 provided with second coupling element 12. In the shown configuration sealing element 14 is fitted at or near an end 6,10 of hose part 2a,a and extends manifests itself in the displayed state of use in an adjacent hose section over a sealing length Ls (see also Figure 3A,B). Sealing element 14 is provided with a tubular part or sleeve. 16 (Figure 1), also referred to as a sleeve, which is inserted into the adjacent one when in use hose section. Here, a type of stay 18 has been fitted as a reinforcement element on, in, or attached to tubular part 16 in the form of a strip, cloth or other element to provide rigidity to sealing element 14. Pump system 102 (Figure 2) is equipped with pump 104, with 106 on the suction side. suction pipe 110 is provided and on pump side 108 discharge hose 2 is provided. On pump side 108 are in the shown embodiment hose sections 2a,a,b,b,c,c with the aid of couplings 4 interconnected to form hose 2. If desired, hose sections 2a,a,b,b,c,c are possible. also to be provided on suction side 106 for the realization of suction line 110, although herewith preferred hose sections 2a,a,b,b,c,c are used that are suitable for the application of a under pressure and not be sucked flat in the process. It is possible to hose parts 2a,a,b,b,c,c in this case. to connect in advance to a desired length and / or this wholly or partially in the field during to use to adjust the length of hose 2 to the specific situation. Pump 104 is at preferably part of an independent unit or module that is movable and on a can be placed at the desired location. This enables effective and fast placement, as well as Relocation of pump system 102 possible. Hose section 2a,b,c (figure 3A) is in the shown embodiment by means of welded joint 20 fitted with sealing element 14, where one end of tubular part 16 at weld location 20 is connected to one of the ends 6, 10 of tubular body 3 of hose section 2a,b,c. In the configuration shown, sealing element 14 extends over a sealing length Ls and is provided with flow diameter D, at least in the service condition of hose section 2a,b,c. Sealing element 14 is furthermore provided with reinforcement elements 18 such as previously discussed, and is equipped with end edge 20. Coupling 4 is in the shown configuration. realized by providing a number of eyes 22 and hooks 24. Belt 28 (figure 1, 4B) is designed to subsequently thread through eyes 22 for securing adjacent hose sections 2a,b,c. In an alternative embodiment, hose section 2a,b,c (Figure 3B) is provided with elements which correspond wholly or largely to hose section 2a,b,c (Figure 3A), where hose section 2a,b,c (figure 3B) in particular is provided with another coupling 4, where tie straps 26 are used to simplify passing hook 24 through opening 22 during use. It will be clear that other implementations are also possible with completely different connections as mentioned earlier, where a tool is optionally used. In the shown embodiment(s), tubular body 3 is manufactured from a extruded PVC material and sealing element 14 is mainly manufactured from an EPDM material. The reinforcement elements can be made of a different material if desired, such as rubber or textile. Sealing length Ls is preferably in the range of 20 cm to 150 cm, more preferably in the range of 30 cm to 100 cm, and amounts to 50 most preferably cm to 70 cm. Length L of hose sections 2a,b,c can be chosen as desired, however, common lengthsL lie in the range of 5m to 25m, preferably in the range of 8m to 20m, and with The most preferred length is about 10m to 12m. Diameter D is within the range shown. embodiment in the range of 20 cm to 60 cm, and is preferably located in the range of 25 cm to 50 cm, and amounts to about 30 cm in currently preferred versions, in the particular 30.48 cm (12 inches). It will be clear that the mentioned dimensions can be adjusted be based on the intended applications. In a shown embodiment, opening 36 (Figure 4B) is provided, preferably near end 6.10 for draining hose 2, for example with a diameter of about 1 cm. Opening 36 can provide further assistance in draining hose section 24, preferably in supplement to the drainage of water along a closed sealing element 14 between two interlocking hose sections 24. Optionally, closing element 38 is provided with this in the form of a type of non-return valve or check cap with which opening 36 is closed in use and can open to drain hose 2. It will be clear that this drain function on can be realized in various ways. To realize coupling 4 (Figure 4A,B), a hook must be used in a shown embodiment. 24 of a hose section 2a,b,c to be passed through eye 22 of the adjacent hose section 2a,b,c to subsequently be secured, for example with belt 28. Use may be made of this are made from tool 30. In the shown version, tool 30 is provided of hook 32 which can be inserted through eye 22 with the aid of shank 34 to then attach grip hook 24 and pass it through eye 22 with shank 34 by a withdrawing motion. there. By subsequently securing hook 24, for example with belt 28, coupling 4 is realized. between two adjacent hose sections 2a,b,c. It will be clear that other tools according to the invention, also belong to the possibilities. For pumping a liquid, for example excess water during a flood, pump system 102 is placed at the required location. Suction pipe 110 is connected for this purpose. pump 104 is provided and hose 2 on pump side 108 of pump 104 is also provided Hereby pre-coupled hose sections 2a,a,b,b,c,c are installed and / or are installed on site connected. Once the positioning and assembly of hose 2 is complete, the fluid can be pumps with pump system 102. After pumping is completed, pump 104 is switched off. after which the liquid is released from hose 2, possibly by using openings 36 with closure 38. After this, couplings 4 can be loosened if desired for disconnection. of hose part 2a,a,b,b,c,c and / or these are preferably rolled up or folded, if applicable as a whole or in longer lengths of multiple hose sections, and prepared for transport, storage and / or further use at another location. The present finding is by no means limited to the above-described. preferred forms of implementation thereof. The requested rights are determined by the following conclusions within the purport of which various modifications are conceivable.

Claims

1. Hose section designed for assembling a hose for pumping a liquid, where the hose part comprising: - a tubular body in use that extends between a first end and a second end; - a first coupling element provided at or near the first end of the hose section designed for connecting the hose section to another hose section, and on or near the second end of the hose section provided with a second coupling element; - placed on or near at least one of the first and the second end sealing element, where the sealing element is provided with a part that is predominantly tubular in use that extends into an adjacent hose section and is equipped with one or more reinforcement elements.

2. Hose section in accordance with claim 1, where one or more reinforcing elements are located in Use primarily extend in the longitudinal direction of the hose section.

3. Hose section in accordance with claim 1 or 2, where the reinforcing elements are on the inside be provided with the sealing element.

4. Hose section according to claim 1, 2, or 3, where the reinforcement elements consist of a foldable material is provided.

5. Tubular part according to one of the preceding claims, where the tubular body is provided of a first material, and the sealing element is provided of a second, different, material.

6. Hose section according to one of the preceding claims, whereby between the tubular A weld is provided between the body and the sealing element.

7. Hose section in accordance with one of the preceding claims, where the sealing element in The main component consists of Ethylene Propylene Diene Monomer (EPDM).

8. Hose part according to the preceding claim, where the tubular body of the The hose section is primarily made of polyvinyl chloride (PVC).

9. Hose section in accordance with one of the preceding claims, where the first coupling element and the second coupling element forms a hook-and-eye coupling.

10. Hose part in accordance with one of the preceding claims, further comprising one or more openings designed for draining the hose section when terminating the pumping.

11. Hose section in accordance with the preceding claim, further comprising a closure for the one one or more openings, where the closure is designed to close the opening when in use during the pumping of the liquid.

12. Pumping system for pumping a liquid, the pumping system comprising: - a pump; - a suction pipe fitted or attachable to the suction side of the pump; - a hose attached to or attachable to the pump side of the pump, where the hose is composed of a number of hose sections according to one of the preceding conclusions.

13. Pumping system in accordance with the preceding claim, further comprising a coupling tool designed to create a connection between two adjacent hose sections.

14. Method for pumping a liquid, where the method comprising the steps: - the provision of a pump system with hose sections in accordance with one of the preceding conclusions; assembling the hose from a number of hose sections; connecting the suction line and the hose; and - pumping the liquid.

Images